Improvement in carbonized paper



L. H. ROGERS.

Improvement in Carbonized Paper.

No. 132,324.. Patented Oct. 15,1872.

Inventor.

UNITED STATES.

LEBBEUS H. ROGERS, on NEW YORK, n. Y.

IMPROVEMENT IN CARBONIZED PAPER.

Specification forming part of Letters Patent No.- 132324, dated October15, 1872.

To all whom it may concern Be it known that I, LEBBEUS H. ROGERS, of thecity, county, and State of New York, have invented an Improvement inOarbonized Paper, of which the following is a specification:

My invention relates to the manufacture of carbonized paper for use inmanifold writing or printing; and my object is to produce such paper insuch a way that it can be manipulated without. soiling the fingers. Toaccomplish this I, produce my carbon paper in sheets of any desired sizeand shape, with one or more edges or margins bare and clean so as toadlnitof handling the paper without soiling the fingers.

The accompanying drawing represents a sheet of carbon paper madeaccording to my invention.

The central and main portion A of the paper is prepared in the usualmanner, with suitable carbon or colored material, adapting it to act bytransfer in the customary process of manifold writing or printing. Brepresents an edge or margin loft white and clean to admit of handlingthe sheet without soiling the fingers. This unsoiled margin may beextended on one or more edges of the sheet, if desired, but I prefer tohave it on one side only, as this answers every necessary purpose, whileleaving other parts of the sheet available for use. It will be observedthat a sheet made with a single clean margin, as described, is asavailable as one made black all over in the usual way. For conveniencein manipulation it is desirable to have one edge of the carbon sheetproject beyond that on which the writing and printing is to be produced.I reserve the right to produce my improved carbon sheets by dipping oneor more edges of the blackened paper in an alkaline solution for thepurpose of removing the black material from such edge or edges.

Claim.

I claim as a new article of manufacture- Carbon paper, made in sheets,with one or more clean edges or margins for the purpose of handling it,substantially as set forth.

